plumiBit manipulation: CAIE A‑Level Computer Science questions
Every CAIE A-Level Computer Science exam question on 4.3 Bit manipulation, June 2024 and the specimen papers, with its mark scheme and examiner’s report.
Paper
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Exam
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Calculations
Q4(b)
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Q4(d)(ii)
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Q4(d)(iii)
The whole paper ↗Q4(d)(iv)
The whole paper ↗
All 4 questions on Bit manipulation, as a list
- June 2024, Paper 1, Q4(b) (3 marks): The processor includes these bit manipulation instructions: Instruction Explanation Opcode Operand AND #n/Bn/&n Bitwise AND operation of the contents of ACC wit
- Specimen, Paper 1, Q4(d)(ii) (2 marks): The following table shows some assembly language instructions for a processor which has one general purpose register, the Accumulator (ACC). Instruction Explana
- Specimen, Paper 1, Q4(d)(iii) (1 mark): A two-place logical shift to the left is performed on the binary number shown in part (d). Show the result of this logical shift. [1]
- Specimen, Paper 1, Q4(d)(iv) (1 mark): State the mathematical result of a one-place logical shift to the right on a binary number. [1]
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